Vehicle brake-shoe carrier plate and bracket mechanism therefor



Novj. 24 1925- A.,Y; DODGE VEHICLE BRAKE SHOE CARRIER FLATE AND BRACKET MECHANISM THEREFOR Filed March 22, 1924 4 Sheets-Sheet 1 IN VL'NTOR FAQ/5L 719006:

Namm W925 A. Y. DQ335115 VEHICLE BRAKE SHOE CARRIER PLATE AND BRAcKEr-mcrmmsaa THEREFOR Filed Mar h 2 My. Z2

Nov. 24 1925- A. Y. DODGE VEHICLE BRAKE SHOE CARRIER PLATE AND BRACKET MECHANISM THEREFOR Filed March 22, 1924 1 EQUUQRE VEHICLE BRAKE) 51-10 3 CARRXER PLATE AND BRACKET MECHANISM THEREFOR Filed March 222, 1.924 4 Sheets-Shwi 4 HJVENTOR 4% Patented Nov. 24, 1925.

UNITED STATES ADIEL.

DODGE, OF SOUTH BEND, INDIANA, ASSIGNOR TO IBENDIX PATENT OFFICE;

Bu coil- IA'NY, OF CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

Application filed March 22, 1924. Serial 1%. more.

To aZZ whom it may concern."

Be it known that I, Ammo Y. Donor, a citizen of the United States, residing at South Bend. in the county of St; Joseph, 'State of Indiana, have invented certein'new and useful lm movements in Vehicle Brake- Shoe Carrier lates and Bracket Mechanism Thercfor, of which the following is a description, reference being had to the accompanying drawing, and to the figures of reference marked thereon.

This invention relates to improvements in front wheel brake control mechanism. In the well-known Perrot system of front wheel brake controh there is provided a control shaft, one end of which is attached to a nonrotatable part of the vehicle, such as the chassis frame, and the other end is arranged to actuate a cam or cam shaft. which in turn operates the brakes, usually of the internal expanding type, and my invention is directed to improvements in the said Perrot systern by the introduction of certain novel features.

It is Well known that in the manufacture of metal partsystampings from sheet metal are among the strongest and the least expensive to produce. chine parts, which must be used and which can he produced from bar stock on automatic screw machines, are likewise inexpensive for this class of parts.

Therefore, some of the objects of my invention may be statedas follows: to provide strong and dufable means for mounting and actuating the brake shoes of the front Wheels of an automotive vehicle, which some consist of a minimum number of parts, all being siin ale and easy to manufacture; end to provi e {r design which will be adaptable for bothrigl'it and left Wheels.

These and other ohjlecl's' 'iviil be clear to one skilled in this art after study of the specification and 'the drawings annexed to hereto. J

l igzurc l a vertical sectional View llnoilgh a whceldinm and part of the spiniliejanil brake mechanism, showing also the outer support for the brake control shntt.

the hrahe carrier plate.

Figure 3 is a lo view of Fig. l 'igffmc i is a shit: view of Fig.

' parts in operative the agcle spindle 2 Furthermore screw ma-q "carrier plate 5 preferably made of a. reduced scale of Figure 5 is a view of the cover plate which Figure 8 is an end elevation of Fig 7. FFrgure 9 1s a section on the line 9/9 of 1 Figure 10 is a section on the line 10/10 of 10, Fi -ure 11 being a fragmentar detail on the line 11 1; of Fig. 10. y

F1gure 12 is a plan view showing the carrier bracket plate end bracket and other position.

.bigure 13 is a side elevation of the left wheel of the vehicle looking from the wheel side, the wheel away.

Figure 14 is a perspective view of the cap covering the king pin, v

eferring; now to the drawing wherein like numbers refer to correspon ing parts in the various views, 1 is an axle beam to which is connected by means of the pivot pin 3. The axle end of the spindle 2 is formed with a list surface to which is bolted b a suitable number of bolts 4:, a strong sheet metal, such as steel. holes 6 being provided therein for these bolts. The carrier plate 5 is perforated or isv provided with a side of the drum being out large orifice bounded by t e line 7, which is.

the line that fits around the axle end of the spindle 2. Over the pivot pin 3 a cap 8 is provided, which has an arcuately shaped fiance 9 that closes off the opening intoifni cavity formed within the brake drum 10 at the point where the carrier plate 5 passes around the boss containing the upper end of the pivot pin 3. The carrier plate projects upward above the axle and spindle and in its upper portion has an orifice 11 to receive the dowel portion 12 of the carrier bracket 13. Bracket 13 has an arcuately formed projecting part 14 on which 'move aprotecting cover 15 which is associated with a cap 16 held in operative position by means of a. resilient. 'member 17 and a ockiim device 18 carried on the control shaft 19, that is actuated by the lever 57, the outer end of the shaft 19 being supported to the side of the chassis 58 by is adapted to means of i a bull and slip joint indicated by 59. Itis to lftfllllHlCI'SlUUtl that the cover 1.3 and cap 16 have an oscillatory movement over the end l-las the wheel and chassis ol the vehicle more,

In order to securely fasten the bracket 13 .in the hole ll of the carrier plate 5, holes 2o, 21 and 32 are provided. The correspond ing holes in Fig. 2 are 'ivcn the same numbers to show that the 'l'asteniun' bolts which pass through the carrier brachct pass through corresponding holes in the carrier plate. The bolt which passes through the holes 30 in both the biacliet and the carrier plate is indicated in Fig. 12 by the numeral 52? while the bolt passes throughthe holes 22. Instead of a through bolt going all the way through the carrier bracket I have utilized one of the bolt, holes for a special purpose, nan'ielv that of passing lubricant to the interior bore in the. bracket '13. This is accomplished by threading the hole 21 and screwing tercin an adaptor i-lti which carries a luln'icating cup 3?. The adaplzir 26, therefore performs the double function of acting as a set screw in clamping the bracket to the carrier plate 5. as well as a carrier member for the lubricating cup 27. A groove 2:; is provincd in the interior surface of the bore 2 3 and a passage 23) leads from the groove 28 to the tapped hole 21.

The "ier bracket 13 is provided with two substantially parallel arms 30 and Blhaving a hole 33 therein. Between these arms and on a bolt: 23:2 (see Fig. 12) fitting in hole 33 is pivotally mounted one end of the brake shoe of the Pei-rot type shown more in detail in Fig. 12 and which will be referred to later on.

lVithin the bore 25 of the carrier bracket is supported a universal joint mechanism 34;,

.the wall of the bracket.

mounted on the end 37 01 the camshaft 3:3 being held in position by any suitable means,

one member of which includes a camshaft 35, the nose ot the cam 36 protrudes through The cam 36 ]S such as airanclior pin 38 and a bearing collar 39 which in turn is held in position by having the metal of the camshaft spun over at it). These particular details of the universal joint and cam shalt form the subject matter of another application and will;

therefore, not be referred to in detail here in except to point out that alter the cam has been assembled to the camshaft in the manner just briefly described. it is asseinbled in the carrier bracket 1.3 through the medium of an opening l1, which forms an entrance for the cam which projects out wardly from the shaft After the cam is then passed through the opening ll the cam shaft is revolved so the cam passes into the slot 42, after which the cam stop it) (see i3) is put in place and the bolt '20 insorted after the carrier bracket. has been put in position on the carrier plate The stop 43 rests against the lip 44, both of which act to prevent the cam 36 from being turned more than a fixed amount, as will be clearly indicated by reference to Fig. 13 in which is shown a self-wrapping servo-bral e of the Perrot-Farnam type, wherein the brake consists of two members pivoted together at the floating joint 45. One of these members pivoted by the bolt 32 as already described, and the other member carries a cam engaging member 4-6 preferably of hardened steel. These brake shoe members carry a friction covering 4:? Which is brought into engagement with the inner part of the brake drum 10 on actuation of the cam 56. The construction and operation of this type of brake forms the subject matter of another application and will, therefore, not be further described herein except to mention that the carrier plate 5 has holes 48 in the turned over strengthening rim of the plate to receive one endof the brake control spring 19.

It will be noted in Fig. 2 that there are two holesdSon opposite sides of the plate 5, also an cxtra'hole 50 is provided together with two cars 51 with holes therein, whereby plate 5 can be used on either the right or left hand wheel. The holes 52 in the cars 51 are used for the reception of an eccentric stop for regulating the clearance of the brake shoes with respect to the drum 10. The eccentric is turned from the outside and locked by the nut; 53. In order to close oil the opening into the drum, I have provided a cover plate 54 having the same corresponding holes 6 as in the carrier plate, the same bolts being used to hold both the coverplate and carrier plate in position. Corresponding holes 20, 21, 22, 50 and 11.

are provided for the bolts that; secure the carrier bracket, as clearly indicated in Fig. 1.

The cover plate 54; has a boss (31 and a 'hole 62 therein. This boss with the arrang nient of braking niemluirs shown is scincwhat oil the vertical center line and. there' fore, is preferably -lorinml separately after the cover has been punched including all oi the/holes previously referred to, except the one through the boss itself. The position of the boss and hole for one wheel is irulicated in full lines and for the other wheel it is in dicatcd in dotted lines. The hole (32 takes an cyelet 83 used for engaging one end of retaining spring (it that is used in coniunc tion with a bushing to hold the braking ill members from lateral displacement. The bushing acts to form with the braking nmmbers the floating pivot f] heretofore re" fcmntl to.

It will l)? swan llml i have provided a canvricr ln-zu-la'ct all in one piece, which takes flu plum of nawmi niec'ns imrefofore used, and iliis brnclwlv forms an anchorage fur the brain! shown as weii 2s 1! bearing for the camshaft which inilnnies ilm brainy and also pmvula-s a smmlilzr bearing" in connection Um mg tims iimcribed my inwntion, what I 1: (lziinl in:

l. in i-mnliinalinn with :1 lmving lmikv (ii'nni and :i :qnmlln Sll ])()i"iml by an axis. a (nirim' plnie filtingg" around and l'nsivnwi in ll 9 axle (Dd n'l' am spinl'iln illlli extvncling above fin spimllia a ln'aclcelt lnsl'enuii to said extended POl'iGiOll of the plate and having a he plate lXj fil'fii the (ii-um, a, universal joint including :1 shaft with ii mm attached film's-- r0 housed within said. bracket. braking means, imuswd Within thn (illllll and zulnpl'mi to act thereon, pivalceci in snifi bracket 50 as to be actuated by said cam. and a cover plain lying: over {he (1ilil-}7-ifli't for closing: off the drum openinggx 9. in 'omlvinniinn with n'veliiclc Wllfli having; :2 main (imam and ii spimlie support ml by an flXii, :1 {-zu'rim' plain fitting! m'minii and fnslpnmi tr;- llie axle 9nd of ihe spindle and nxivnding: nlmve the spindle, n bracket fusl'enml tn Salli (Xi'fifidf'd portion of the plate and having; :1. pm'i shouldered against the pink) and pmtrnziing: through it a universal joinl' including a laiift will: a can. ntlnclieil i'ililPlO lmnswl Within Slliii, bracket llie nose of said van. nxfl-niiing through :1 Slot in the blanket. braking; means lmusmi Williin the drum ZliHi nimliwl in mid in'nviml' R0 as in lK mlmi on by iill nuns 01 said 0am. ash) for llm mun iziu'i'iml by the llizltfifi'i." nil a (HWI' plialllying; mm the warrior plate in ('l'JFH nll' line npvningg' inlu lho lil'illil.

I). in ('filili il'l i'iflll with it which wlm-i inning: a lniikn iil'lllll and. n spindle slippnrb Mi by an nxlm a (:u'i'itn' pinl'ei fitting; mound and fastened to tile with oml 0f the spindle nml Pxl'nmling alien's l'lio HPl1l(il(. :1 mm pim'e bracket fastened in the extenslvil partial) m Qiliii plate and lni'iingr n lmiz slmizlilnrml against the. pi-2m and prnimztiing llirnngli it said protruding: pm? being; aimznivly fnrmml 01. a cover beaming, mini braclie having an part piol'i-mling lln-ougli arcnmie slot therein i'z'nnsversn 5:0

luclinal. axis, :1 universal inirai i Mi ii, can: shaft banned Within said iiiiicliiv" so :2 mm 0n the slna'f'b will lie in iifi slain, bllilii ing means homer! iviziiin the (ii-inn and (lied in said iii-nickel no as in be sacked on ln' tin: cann n slop 'l'm' roiling l'iin maven-in: of the cam uni-ind V Hie liwsn-iaet and n inifiingz linungii lmiiii plate and tnmlmlpmi 0'5 lie in'n0itel:,n

joint lmusnri, in! llm are ininl in- ('lmling awn mini. Slnii l ini'ving (train ing tl'n'onggii tin: Wall of 5; n2

i'zmjivuinnr-r mni 4 F iln in'aclieig ili'iilzing minim isml 'wii liin ifm ili'imfnml pimi iii in in: mlut so as in ii? z rfilml on lay mid. Clint ind a stop Cm'i'iwi 13 v f m bracket in limit the mm'en'imt of mid cal ll 1. I in cmniiinatiim with *i'niiic 'i liming a lmilm ili'inn a n spindie any, purged i1 21!) axle. siiiii spimile having 2 fiat SNIfEMC at its axis and a punched. minim.- plain l'liiYiIlfi :i illjllifll' m'w'nii lifting owiill? axle end of lilo spinilin and n.

"wheel cover plate fin closing nil" iiin 0p iniu Hie (ii-mu, iioll'i plains lwl'iiil imilnil, Milli flat sm'lzicn lay tina same hails, n. said planes in their 11mm nm'liim snmllex cirrnlm' n'peuingzs in nliri at?? 1i (me piwin'zwiwl; 'fi'lwllififi'itii m-rliiml miil simillm' npeningjgsi in. both plan-n mnl min mal univmwnl joint unnpieteiy hmnml in Kim M.-

illii and extending to a position to be engaged by said cam, a stop on the bracket for limiting the movement of said cam, and a cover plate fitting over the bracket and spindle, and closing 0d the drum opcnlng.

7. In combination with a vehicle \vhccl having a brake drum and a wheel spindle supported by an axle, a carrier plate fitting connecting said groove to one of said bolt holes, a combined lubricator and 'stud m of the bracket and over the sald one hole forming one point of\ attachment to said carrier plate, said l'n'acket having a pair of spaced arms one of which rests against the carrier plate, braking means po sitioned between said arms and supported on a bolt passing through the arms and plate, a universal joint including a cam shaft positioned in the said bore of the bracket, said bracket having a slot intercepting said bore, a cam on said shaft positioned in said slot and adapted to actuate said braking means, a stop on the bracket for limiting the movement of the cam and a cover plate fitting over theprotrluling end 'arrier plate as described.

8. In combination with a \iehicle wheel having a brake drum and a :spindle sup.- ported by an axle, a carrier plate fitting around and fastened to the axle end of the spindle and extending above the spindle, a one piece bracket-fastened to said extended portion of the plate and having a part pro--' truding through the plate beyond the drum, a universal joint including a cam shaft housed Within the bracket, means for lubrieating the joint and shaft, acam on the shaft having a part extending through the wall of the bracket and braking ineans1novably attached to the bracket Within the confines of the drum and extending into engagement with said cam.

9. In combination with a vehicle wheel having a brake drum-and a spindle supported by an axle, a one piece. carrier bracket houslng a universal joint including a cam shaft carrying a cam, braking means, adapted to act on the drum, movably connected to said bracket and cxtemling into operative relationship with said cam and a support for the bracket fastened to the axleend ot the spindle.

10. In combination with a vehicle wheel, having a brake drum and spindle supported by an axle, a one piece carrier bracket carrying a universal joint including cam actuating means, braking means, adapted to act on the drum, movably connected to said bracket and extending into operative relatiouship with said cam, and a support for the bracket fastened to said spindle.

ll. In combination with a vehicle wheel having a brake drum and a spiiullc supported b v an axle, a one piece carrier bracket carrying a universal joint including cam ac tnating means, braking means, adapted to act on the drum, movablv connected to said bracket and extending into operative relationship with said cam, and a punched carrier plate having an orifi e therein to lit around. the axle end of said spindle and another orilizc l'or receiving said bracket vvith moans l'or holding the plate to the spindle, and further means :lor holding the bracket to the plate.

'l'J.-In combination with a vehicle wheel having a. brake drum and a spindle supported by an axle, a one piece carrier bracket carrying a universal joint including cam actuating means, braking means, adapted to act on the drum, movably connected to said bracket and extending into operative relaiionship with said cam, a punched carrier plate having an orilice therein to fit around the axle and of said spindle and another orifice for receiving said bracket with means for holding the plate to the spindle and fur ther means for holding the bracket to the plate, and a punched cover plate over the drum opening having similar orifices and the same holding means as said carrier plate.

13. In combination with a vehicle Wheel having a brake drum and a spindle supported by an axle, a one piece carrier bracket carrying a universal joint including cam actuating means, braking means, adapted to act on the drum, movably connected to said bracket and extending into operative relationship with said cam, and a punched carrier plate having an orifice therein to lit around the axle end of said spindle and another orifice for receiving said bracket with means for holding the plate to the spindle, and further means for holding the bracket to the plate, a part of said holding means for the bracket acting as the connecting means of the braking means to the bracket.

14. In combination with a vehiclewheel having a brake drum and a spindle support ed by an axl a one piece carrier bracket carrying a universal joint including cam actuating means, braking means, adapted to act on the drum, movably connected to said bracket and extending intooperative relationship with said cam, and a punched carricr plate having an orifice therein to fit around the axle end of said spindle and a11- other orifice for receiving said bracket With means for holding the plate to the spindle and further means for holding the bracket to the plate, a part of said holding means for the bracket acting as the connecting means of the braking means to the bracket, and a Ill magma further part of the holding means acting as means for slipplying lubricaioi to the parts inside the lr'zzchot,

15. I1 combination with a vehicle wheel having a brake drum and a spindle sup ported by an axle, a one piece carrier bracket 'nrrying a mirersol joint including; cam actuating Elma-ms, braking; means, adapted to "act on ihe drum, movnbly connected to said bracket and extending into operative relationship with. said cam, and a punched cz1rrier plate hovingon orifice therein to fit around the axle and of said mimllv and onother oriiieo for receiving said hraclcm with muons for holnli Lilo plain lo the spinille 11ml l'urlhr-r means for holl'ling' 'l'hc hrzu-lwl i'o Hm pinto, 21ml furthrr orifices in the carrier plate whorohy tho Fame 1; air may ho used to mount tho hmclaoi in villi-or oi lwo poiiiouo for right or loft whevlr".

1G. in uomoi mtiou with a vehicle wheel having :1 brake :lrm'n 3114i 1: spindle suppor ml my an axle, :1 one piece carrier brill-hot (':H'l' .'ln a imirorsal joint including com urinating; moons, hrall'ing' moans, mlaplrd to out on the drum, movahly vonnvuhwl to said lmu-lmt 11ml exivrulin into operative relationship with said cam and :1 um-hell can rivr plate having an orifice therein lo fit nrouml {he axle (and of Raul spimllv nml unollwr orifice l'or rwoivii'igr $=ui l ln'zu-lwt with uu-um: for holding the Plato to The spindle :mll i'urlhor moons for holding the bracket to lhn mm, and furihor oriliwos in the carrier plate for uitavhing lrmlao lomioning and. po

13". in omnhinniion with :2. vehicle wheel having; u hrnlzo Lll'lilli uni: a spimllv supportwl hy am uxlo. :1 moo pior-o rzlrrivr hmolml, rnrrying :1 unirvrool joint inclmliug' cum no hurling moan, hrsrhi 2110mm, udupl'ell to or! on llw rlrunu momhly ronuootoiil to'sziid lnurliut 11ml oz zli'ruling iirto opvmfi'vo relationship with will cum, uiul o um-hell carrier plate ha ing on ori' nroun therein to ill;-

other orifice for roooivii means for holding the p. and. further moans for hold the plate, anti. ifurbhor oriiiiiies tier plate whereby tho 4 used to mount the bracket positions for right or loft further 0 'ifices in said. of; talc-hing ulce regulating 18. As :1 means for vehicle wheel (lrum, carrier plate fitting over and iaslouoii wheel 3 imllc and a 01% piece: oar i detrzclm fly fostemrl to plate, is having points of altiich'anv )r or latinp; lorioes and. sohl limo/lief, supporting the brakes and also or. hr: k0 urinating: means,

19. As a moons; for oppi vehicle Wheel drum, the carrier plate lilting over and fliuio wheel spindle nml. a one oio'ro om- :lotochzrhly fastened to the having points of al tiicin' f, v dialing dovicos :uul 1o ma vel i" supporting the l)l'2l\'S and also brake actuating means, 2 cover 1 around the bracket and spirullo mini carrier plate for closing the drum mm 20. In mmhirmion Ii :1 which having a hrnlco (lrom am: a spindlo to an axle by u pivotv pin a carrier ir tmg nrouml :uul mourned to Stlflii part vwindlo carrying soul pin amok lonml lo said plate and having; is, lriuling; ihrougzh the phrto, ii rmicrm inolmlm q a shall: wiih :1 can: ulmcho to housed within ilw lu'iiul vices pivoteliio said brim r. r 35 tooled by mid rum, so? :3 piurio tho carrier late and :2 cap pooia spinrilo over {he pivot if a flange. laliipiog over cover for the purpose [loo $39 In testinmny whoroi 

